Spawning Summary

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Spawning of Catostomus catostomus

Main Ref:

Morrow, J.E., 1980

Data Ref.:

Country:

Spawning ground:

riverine

Locality:

Not specified

Season:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

111

Sex ratio:

% Ref.:

Temperature:

- °C

Gestation period:

month/s

Length of offspring:

Batch spawners

Daily spawning frequency

-
Mean:

Min Ref.:
Max Ref.:
Mean Ref.:

Comments:

Spawns in the spring, as early as May in the southern part of the range, and as late as July in the far north. Spawning runs begin after water temperatures have reached 5°C, with greatest intensity occurring at temperatures above 10°C (Ref. 10928, 28925). Spawning occurs in shallow streams (10 to 60 cm deep), mostly over gravel, and with a current 30 to 45 cm per second (Ref. 10928). A single female may produce up to 60,300 eggs (Ref. 10928, 28926).

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